Journal
CRITICAL REVIEWS IN PLANT SCIENCES
Volume 34, Issue 1-3, Pages 4-16Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/07352689.2014.897897
Keywords
arbuscular mycorrhiza; transport; ectomycorrhiza; inorganic nitrogen; legume rhizobia symbiosis
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Funding
- ANR (Agence Nationale de la Recherche) [TRANSMUT ANR-10-BLAN-1604-0]
- Germaine de Stael program [TRANS-BIO 26510SG]
- Swiss National Science Foundation (ambizione grant) [PZ00P3_136651]
- Burgundy Regional Council [PARI Agrale 8]
- Australian Research Council
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Arbuscular mycorrhiza (AM), ectomycorrhiza (ECM) and nitrogen (N) fixation through rhizobia symbioses (RS) play a critical role for plant nutrient use efficiency in natural ecosystems, usually characterized by nutrient limitation, especially regarding nitrogen and phosphate. Substantial evidence has accumulated about how the rational use of microsymbionts' properties should significantly contribute to decreasing fertilizer and pesticide use in agriculture and forestry. Understanding the mechanisms underlying high N use efficiency by mycorrhizal/rhizobial plants and carbon allocation in a context of mutualistic biotrophic interactions is critical for managing both croplands and forests while taking care of the ecosystem services rendered by microbial symbionts. Availability, uptake and exchange of nutrients in biotrophic interactions drive plant growth and modulate biomass allocation, and these parameters are central to plant yield, a major outcome in the context of high biomass production. To unravel the symbiotic N transportome blueprint from various host plant combinations, it is critical to facilitate the first steps favoring the manipulation of crops toward greater nitrogen use efficiency and mycorrhizal or rhizobial ability. The present review addresses current knowledge on inorganic N transport in mycorrhizal/rhizobial symbiosis.
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